Compute the heats of combustion for the reactions

Assignment Help Chemistry
Reference no: EM13673085

Compute the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3.(→?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)

(a) 2 H2(g) +O2(g) → 2H2O(l)

(b) 2 CH3OH(l) + 3 O2(g)→ 2CO2(g) + 4 H2O(l)

Reference no: EM13673085

Questions Cloud

Demonstrate intermediate resonance structures leading : Demonstrate intermediate resonance structures leading to both methyl Meta-and para-nitrobenzoates. Based on these resonance structure, s which product should be favored and why
Explain what is the pressure of the gas : An aerosal spray can with volume of 450mL contains 4.0g of propane (C3H8) as propellant. Explain what is the pressure of the gas in the can at 28 degrees C
Define hcl factors in the rotation-vibration spectrum of hcl : Can someone please define how the bond length of HCl factors in the rotation-vibration spectrum of HCl. Since the IR spectrum of the HCl shows many peaks, however not the HCl peak we want to see.
Compute the heat given off by the burning mg : The calorimeter contains exactly 251 g of water as well as the temperature increases by 1.126°C. Compute the heat given off by the burning Mg, in kJ/g and in kJ/mol.
Compute the heats of combustion for the reactions : Compute the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3.(→?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)
Explain why is the concentration of solidcdc2o4 : Explain why is the concentration of solidCdC2O4 considered a constant. Explain why is the saturated solution ofCdC2O4 heated to 55- 60 degrees Celsius before titration with the KMnO4 solution
Explain what is the longest wavelength of light in nanometer : Suppose the ionization enthalpy of sodium metal is quite low at 495 kJ/mol. Explain what is the longest wavelength of light in nanometers, nm that will produce the photoelectric effect with sodium i.e. to eject electrons from sodium.
Compute the number of photons needed of microwave energy : A microwave oven operating at 1.22 x 108 nm is utilized to heat 150 ml of water roughly the volume a tea cup from 20 C to 100 C. Compute the number of photons needed if 92% of microwave energy is converted to the thermal energy of water.
Compute the kinetic energy of a neutron with wavelength : Neutrons like electrons as well as photons are particle-waves whose diffraction patterns can be utilized to determine the structures of molecules. Compute the kinetic energy (in J) of a neutron with wavelength 69.7 pm.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the common name of the amino acid

What is the common name of the amino acid produced when 3-methylpentanoic acid is subjected to the following sequence of reagents? 1) PBr3, Br2 2)H2O 3)NH3, heat

  Explain the entropy change for the system

When a sample of DNA forms a double helix the measured deltaG is -17 kcal/mol at pH 7.0, 1 M NaCl, and 37 degrees C. If the enthalpy change for this process is -63 kcal/mol. What is the entropy change for this system

  Explain what is the mass in grams of the sample

A sample of iron absorbs 67.5 J of heat, upon which the temperature of the sample increases from 21.5 celcius to 28.5 celcius. If the specific heat of iron is 0.450 J/g-K, what is the mass (in grams) of the sample

  Explain the concentration of hcl in a bottle were diluted

The concentration of HCl in a bottle was determined as follows: •3.00 mL of the acid were diluted to 250.00 mL •102.40 mL of the diluted acid were titrated with 0.08212-M NaOH

  Explain ethylenediameinetretraacetic acid

A reaction mixture for an enzyme assay has a final volume of .210 ml iin the buffer .030 Mtris hydroxymethaneaminomehtanne, 4.0 mM ethylenediameinetretraacetic acid, .4 mM beta mercaptoethanol

  How many grams of agno3 must be added

How many grams of AgNO3 must be added to 83.0 g of water to make a 2.62 m aqueous solution of AgNO3.

  Explain the volume of the solutions are additive

What is the pH of a solution prepared by mixing 25mL of .10M CH3CO2H with 25 mL of .010M CH3CO2Na? Assume that the volume of the solutions are additive and that Ka= 1.8 x 10-5 for CH3CO2H.

  What is the activation energy

An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction?

  Explain the reaction between p-anisaldehyde and acetophenone

Explain how would I find the percent yield and what would it be if I have 3.292 g of p-anisaldehyde to start out with, 2.905 g of acetophenone needed for the reaction between p-anisaldehyde and acetophenone, as well as 4.151 g of recovered trans-..

  Compute the pressure in torr when the volume is reduced

A fixed amount of gas at 35oC occupies a volume of 10.0 L when the pressure is 876 torr. Calculate the pressure in (torr) when the volume is reduced to 7.98 L at constant temperature of 35oC

  Explain how many grams of iron are there in iron ore

An iron ore was found to contain 92.0% pyrite (fool's gold). Pyrite has the formula FeS2and is 46.5% iron. How many grams of iron are there in 65.8 grams of iron ore

  The mass of an evacuated 255ml flask is 143187g the mass of

the mass of an evacuated 255ml flask is 143.187g. the mass of the flask filled with 267torr of an unknown gas at 25c is

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd